Solve the problem.A rug is to fit in a room so that a border of even width is left on all four sides. If the room is 12 feet by 15 feet and the area of the rug is 108 square feet, how wide will the border be?
A. 3 ft
B. 1 ft
C. 2.2 ft
D. 1.5 ft
Answer: D
Mathematics
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Determine the indefinite integral. Check your work by differentiation.
dt
A. 
- 
+ C
B. 
t3/2 - 
t4/3 + C
C. 
t3/2 - 
t4/3 + C
D. 
t1/2 - 
t-2/3 + C
Mathematics
Write an equivalent double integral with the order of integration reversed.
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.A class consisting of 160 students is given an exam. The first quartile for the scores on the exam is 42. This means that
A. 80 students scored 42 or higher. B. 40 students scored 42 or higher. C. 120 students scored 42 or higher. D. 25 students scored 42 or higher. E. none of these
Mathematics
Solve the problem.Use the line graph to determine how many more hours were needed to prepare for Test 2 than for Test 1.
A. 2 B. 3 C. 4 D. 1
Mathematics